CHA Assembly Square Care Center

* Important note about arriving our main entrance and using GPS.

Your Care First

Our primary care experts see all ages. In addition to providing primary care and women’s health, we are one of the largest bone and joint centers in the region. We are also home to CHA’s Occupational Health, managing the health needs of local businesses, and offering Travel Medicine and Immigration Exams. We offer extended hours, free parking and easy access to public transportation -- MBTA Orange Line (Assembly Station) and bus routes 90 and 92. Our multi-lingual staff either speaks your language or has access to interpreters in over 150 languages.

Primary Care Services

Specialty Services


We are located at 5 Middlesex Avenue in Somerville at Assembly Square, across from the Assembly Row shopping area. Our main entrance faces Revolution Drive and Home Depot. Read more about how to get here and parking information.

Telephone Medical Advice, Anytime

Medical advice is available whenever you need it. Please call our office. If you need medical advice after office hours, please call our main number and you will be connected to a member of our healthcare team.

After Hours Urgent Care

When our centers are closed, all CHA patients have access to urgent care services at several locations – CareWell (sites in Somerville and Cambridge) and Beth Israel Deaconess Urgent Care in Chelsea – where they will share their medical records with CHA. Urgent care is best for health problems that can’t wait for your doctor’s office to open and are not an emergency.

Call 911 for life-threatening emergencies. Remember, CHA has 24-hour emergency care at CHA Cambridge Hospital, CHA Somerville Hospital and CHA Everett Hospital.


As a national model and leader in interpreter services, we regularly provide support in more than 150 languages to all CHA sites. Interpreter services also handle requests for the deaf or hard of hearing, including American Sign Language and CDI services.

    Find Us

  • CHA Assembly Square
    Care Center

    5 Middlesex Avenue* | (entrance across
    from Home Depot)
    Somerville, MA 02145 Get Directions
  • CHA Primary Care, Assembly Square

    5 Middlesex Avenue* | (entrance across
    from Home Depot)
    Somerville, MA 02145 Get Directions
    P: 617-591-6900 F: 617-591-6990


    M, T: 8 am - 8 pm
    W, Th: 8 am - 5 pm
    F: 8 am - 10 am;
      12 pm - 5 pm

    Other Services

  • Orthopaedics

    Phone: 617-665-1566
    Fax: 617-591-4610

    Rehab & Physical Therapy

    Phone: 617-591-4600
    Fax: 617-591-4610

    Sports Medicine

    Phone: 617-665-2007
    Fax: 617-665-1566

    Occupational Health

    Phone: 617-591-4660
    Fax: 617-591-6851

    Travel Medicine

    Phone: 617-591-4660
    Fax: 617-591-6851